[INFO] cloning repository https://github.com/Lakret/backtrack_rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lakret/backtrack_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLakret%2Fbacktrack_rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLakret%2Fbacktrack_rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 21a7dfdaf0c1a79561b1e3182f90e30563868603 [INFO] checking Lakret/backtrack_rs against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLakret%2Fbacktrack_rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Lakret/backtrack_rs on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Lakret/backtrack_rs [INFO] finished tweaking git repo https://github.com/Lakret/backtrack_rs [INFO] tweaked toml for git repo https://github.com/Lakret/backtrack_rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Lakret/backtrack_rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde v1.0.110 [INFO] [stderr] Downloaded quote v1.0.5 [INFO] [stderr] Downloaded criterion-plot v0.4.2 [INFO] [stderr] Downloaded oorandom v11.1.1 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.62 [INFO] [stderr] Downloaded cast v0.2.3 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.62 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.62 [INFO] [stderr] Downloaded num-traits v0.2.11 [INFO] [stderr] Downloaded serde_json v1.0.53 [INFO] [stderr] Downloaded js-sys v0.3.39 [INFO] [stderr] Downloaded criterion v0.3.2 [INFO] [stderr] Downloaded serde_derive v1.0.110 [INFO] [stderr] Downloaded bumpalo v3.3.0 [INFO] [stderr] Downloaded wasm-bindgen v0.2.62 [INFO] [stderr] Downloaded hermit-abi v0.1.12 [INFO] [stderr] Downloaded proc-macro2 v1.0.12 [INFO] [stderr] Downloaded clap v2.33.1 [INFO] [stderr] Downloaded syn v1.0.21 [INFO] [stderr] Downloaded tinytemplate v1.0.4 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.62 [INFO] [stderr] Downloaded bstr v0.2.13 [INFO] [stderr] Downloaded libc v0.2.70 [INFO] [stderr] Downloaded web-sys v0.3.39 [INFO] [stderr] Downloaded plotters v0.2.14 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7d734ee5b431f792506685f1221ebdd41ff76bd5ca214318a4a3cfc9ac6287ce [INFO] running `Command { std: "docker" "start" "-a" "7d734ee5b431f792506685f1221ebdd41ff76bd5ca214318a4a3cfc9ac6287ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d734ee5b431f792506685f1221ebdd41ff76bd5ca214318a4a3cfc9ac6287ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d734ee5b431f792506685f1221ebdd41ff76bd5ca214318a4a3cfc9ac6287ce", kill_on_drop: false }` [INFO] [stdout] 7d734ee5b431f792506685f1221ebdd41ff76bd5ca214318a4a3cfc9ac6287ce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a840cb65dceaaddbbbd77b18420abb74fcb264a376af9038a8e1a7b239563a1 [INFO] running `Command { std: "docker" "start" "-a" "7a840cb65dceaaddbbbd77b18420abb74fcb264a376af9038a8e1a7b239563a1", kill_on_drop: false }` [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling libc v0.2.70 [INFO] [stderr] Compiling serde v1.0.110 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling syn v1.0.21 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking oorandom v11.1.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking clap v2.33.1 [INFO] [stderr] Checking crossbeam-epoch v0.8.2 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Compiling quote v1.0.5 [INFO] [stderr] Checking backtrack_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::thread::JoinHandle` [INFO] [stdout] --> src/lib.rs:210:5 [INFO] [stdout] | [INFO] [stdout] 210 | use std::thread::JoinHandle; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking criterion-plot v0.4.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stdout] warning: unused variable: `reduced_domain` [INFO] [stdout] --> src/ac3.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | let reduced_domain = csp [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reduced_domain` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/ac3.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | [x, y] => {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/ac3.rs:33:11 [INFO] [stdout] | [INFO] [stdout] 33 | [x, y] => {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ac3.rs:15:7 [INFO] [stdout] | [INFO] [stdout] 15 | let mut constraint_refs = csp.constraints.iter().collect::>(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iteration` [INFO] [stdout] --> src/lib.rs:284:3 [INFO] [stdout] | [INFO] [stdout] 284 | iteration: u32, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iteration` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking plotters v0.2.14 [INFO] [stderr] Checking rayon-core v1.7.0 [INFO] [stdout] warning: unused import: `lazy_static::lazy_static` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use lazy_static::lazy_static; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking regex v1.3.7 [INFO] [stderr] Checking rayon v1.3.0 [INFO] [stderr] Checking serde_json v1.0.53 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking tinytemplate v1.0.4 [INFO] [stderr] Compiling serde_derive v1.0.110 [INFO] [stderr] Checking criterion v0.3.2 [INFO] [stdout] warning: unused import: `lazy_static::lazy_static` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use lazy_static::lazy_static; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `black_box` [INFO] [stdout] --> benches/backtracking_bench.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use criterion::{black_box, criterion_group, criterion_main, BenchmarkId, Criterion}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::JoinHandle` [INFO] [stdout] --> src/lib.rs:210:5 [INFO] [stdout] | [INFO] [stdout] 210 | use std::thread::JoinHandle; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reduced_domain` [INFO] [stdout] --> src/ac3.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | let reduced_domain = csp [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reduced_domain` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/ac3.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | [x, y] => {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/ac3.rs:33:11 [INFO] [stdout] | [INFO] [stdout] 33 | [x, y] => {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ac3.rs:15:7 [INFO] [stdout] | [INFO] [stdout] 15 | let mut constraint_refs = csp.constraints.iter().collect::>(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iteration` [INFO] [stdout] --> src/lib.rs:284:3 [INFO] [stdout] | [INFO] [stdout] 284 | iteration: u32, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iteration` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.97s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.2 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "7a840cb65dceaaddbbbd77b18420abb74fcb264a376af9038a8e1a7b239563a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a840cb65dceaaddbbbd77b18420abb74fcb264a376af9038a8e1a7b239563a1", kill_on_drop: false }` [INFO] [stdout] 7a840cb65dceaaddbbbd77b18420abb74fcb264a376af9038a8e1a7b239563a1 [INFO] checking Lakret/backtrack_rs against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLakret%2Fbacktrack_rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Lakret/backtrack_rs on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Lakret/backtrack_rs [INFO] finished tweaking git repo https://github.com/Lakret/backtrack_rs [INFO] tweaked toml for git repo https://github.com/Lakret/backtrack_rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Lakret/backtrack_rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef45d40aa19d15514f8bbc784a1327ad45159e8b4214bc76da5f9ebbf74894f5 [INFO] running `Command { std: "docker" "start" "-a" "ef45d40aa19d15514f8bbc784a1327ad45159e8b4214bc76da5f9ebbf74894f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef45d40aa19d15514f8bbc784a1327ad45159e8b4214bc76da5f9ebbf74894f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef45d40aa19d15514f8bbc784a1327ad45159e8b4214bc76da5f9ebbf74894f5", kill_on_drop: false }` [INFO] [stdout] ef45d40aa19d15514f8bbc784a1327ad45159e8b4214bc76da5f9ebbf74894f5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 85fb35857259d04b42abb88bb3b31d982e6f05d3cef6cbffbbfcf95c5d383ebc [INFO] running `Command { std: "docker" "start" "-a" "85fb35857259d04b42abb88bb3b31d982e6f05d3cef6cbffbbfcf95c5d383ebc", kill_on_drop: false }` [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling libc v0.2.70 [INFO] [stderr] Compiling serde v1.0.110 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling syn v1.0.21 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking oorandom v11.1.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking clap v2.33.1 [INFO] [stderr] Checking crossbeam-epoch v0.8.2 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Compiling quote v1.0.5 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking criterion-plot v0.4.2 [INFO] [stderr] Checking backtrack_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stdout] warning: unused import: `std::thread::JoinHandle` [INFO] [stdout] --> src/lib.rs:210:5 [INFO] [stdout] | [INFO] [stdout] 210 | use std::thread::JoinHandle; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reduced_domain` [INFO] [stdout] --> src/ac3.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | let reduced_domain = csp [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reduced_domain` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/ac3.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | [x, y] => {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/ac3.rs:33:11 [INFO] [stdout] | [INFO] [stdout] 33 | [x, y] => {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ac3.rs:15:7 [INFO] [stdout] | [INFO] [stdout] 15 | let mut constraint_refs = csp.constraints.iter().collect::>(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iteration` [INFO] [stdout] --> src/lib.rs:284:3 [INFO] [stdout] | [INFO] [stdout] 284 | iteration: u32, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iteration` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:247:21 [INFO] [stdout] | [INFO] [stdout] 244 | let (send_work, get_work) = (send_work.clone(), get_work.clone()); [INFO] [stdout] | --------- -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 245 | let send_result = send_result.clone(); [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 246 | [INFO] [stdout] 247 | thread::spawn(move || loop { [INFO] [stdout] | _____________________^ [INFO] [stdout] 248 | | match get_work.recv().unwrap() { [INFO] [stdout] 249 | | Job(work_unit) => do_work(work_unit, send_work.clone(), send_result.clone(), 1), [INFO] [stdout] 250 | | Terminate => { [INFO] [stdout] ... | [INFO] [stdout] 254 | | } [INFO] [stdout] 255 | | }) [INFO] [stdout] | |_______^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rayon-core v1.7.0 [INFO] [stdout] error: aborting due to 1 previous error; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `backtrack_rs` (lib) due to 2 previous errors; 6 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "85fb35857259d04b42abb88bb3b31d982e6f05d3cef6cbffbbfcf95c5d383ebc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "85fb35857259d04b42abb88bb3b31d982e6f05d3cef6cbffbbfcf95c5d383ebc", kill_on_drop: false }` [INFO] [stdout] 85fb35857259d04b42abb88bb3b31d982e6f05d3cef6cbffbbfcf95c5d383ebc